Hi
unless there is an restricting order from the court your wife cannot stop you from taking up the job and moving out of country.
If the marriage has not consummated due to her unwillingness, you have an option to move court for divorce.
Her accusation of you have married some one has to be proved until then it will be a false allegation.
if there was a complaint in women cell and you attended and clarified the matter and her allegations, then there is no possibility of a FIR under 498A and dowry harassment.
by going to abroad on job is not any offence and she can't blame you as cruelty.
her blackmailing and intimidation will continue after you take her to abroad and it will also put you in risk interns of your job,so avoid it if the dispute is not getting solved.
If you adhere to her demands and compromise now , rest of your life will be difficult.
if the matter can be end amicably go for it.